The best museums in Cardiff in September 2025

These are the top 5 best museums in Cardiff, Wales, ranked by their rating and popularity in 2025. Click a museum for more information about the museum, including visitor information, exhibitions and reviews.

For a complete overview of museums in Cardiff, their exhibitions and discount cards & passes, see our overview page with all museums in Cardiff.

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Looking for the best museums in Cardiff? These are the best ones:

  1. Cardiff Castle1

    Cardiff Castle

     Cardiff
  2. National Museum Cardiff2

    National Museum Cardiff

     Cardiff
    National Museum Cardiff is a museum in Cardiff. The museum features exhibits related to Decorative and Applied Art, Fine Art, Natural Sciences, Coins and Medals and Archaeology. Key themes, people and exhibits in the museum include Evolution of Wales, Impressionist, La Parisienne, The Blue Lady, The
  3. Techniquest3

    Techniquest

     Cardiff
    Techniquest, located in Cardiff Bay, Wales, is a science discovery centre that offers a unique, hands-on approach to science. The centre features a science theatre, a planetarium, and an exhibition space with over 100 interactive exhibits. These exhibits are designed to engage visitors of all ages, making it a suitable destination for families, school groups, or anyone with an interest in science.
  4. The Cardiff Story4

    The Cardiff Story

     Cardiff
    The Museum of Cardiff, located in Cardiff, Wales, is dedicated to showcasing the city's history. The museum, which opened its doors to the public on 1 April 2011, offers free entry to all visitors. This makes it an accessible option for tourists looking to learn more about Cardiff's past.
  5. Firing Line: The Cardiff Castle Museum of the Welsh Soldier5

    Firing Line: The Cardiff Castle Museum of the Welsh Soldier

     Cardiff
    The Firing Line: Cardiff Castle Museum of the Welsh Soldier is a unique museum that showcases the collections of the 1st The Queen's Dragoon Guards and the Royal Welsh. These collections provide a deep insight into the history and heritage of these regiments, making it a fascinating destination for those interested in military history.

All museums in Cardiff